| 摘要 |
PROBLEM TO BE SOLVED: To provide a double-lumen cather that smoothens lost bloods in treatments and keeps a heparin-rock effectively in non-treatment with easy operation. SOLUTION: A double lumen cather is constituted of an inside tube that installs a blood sending cavity and blood sending opening 4c, an outside tube 3 through which the inside tube is inserted and which has lost blood cavity between the inside tube, the first compact 5 which is united with a bottom of the outside tube 3, and the second compact 6 which is fitted into the bottom of the first compact 5 sliding or rotatable and united with a bottom of the inside tube integrately, and attached plural slits 9 as a lost blood opening when the tube 3 opens on a side wall and keeping devices 11 and 12 that keep an opening and closing of the slits 9 to the first compact 5 and the second compact 6. |
